摘要
比较分析了不同加工部位及提取工艺对沙棘油得率、品质特性及主要脂质伴随物的影响规律。结果表明:与果肉油和全果油相比,沙棘籽油具有较低的酸价、过氧化值、p-茴香胺值、K232值和K270值,且具有较高的得率、α-亚麻酸和植物甾醇含量;沙棘果肉油和全果油则具有较高的生育酚、类胡萝卜素和总酚含量。与传统溶剂提取(SE)和超声波辅助溶剂提取(UAE)相比,微波预处理+溶剂提取(MPE)和加速溶剂萃取(ASE)均能够显著增加沙棘油得率,但ASE同时增加了沙棘油尤其是果肉油的脂质过氧化水平;MPE能够增加沙棘油中植物甾醇和类胡萝卜素的油相迁移,而ASE则更有利于生育酚和酚类化合物的释放和油相迁移。总之,从沙棘油得率、营养品质的角度考虑,微波预处理作为一种有效的前处理方法,与短时加速溶剂萃取的联合将能够实现沙棘油的提质制取。
The effects of different processing parts and extraction technologies on the yield,quality property and main lipid concomitants of seabuckthorn oil were analyzed.The results showed that compared with pulp oil and whole berry oil,seabuckthorn seed oil had lower acid value,peroxide value,p-anisidine value,K232 value and K270 value,but higher yield and contents ofα-linolenic acid and phytosterol.However,seabuckthorn pulp oil and whole berry oil had high contents of tocopherols,carotenoids and total phenolics.Compared with traditional solvent(SE)and ultrasound-assisted extraction(UAE),microwave pretreatment coupled with solvent extraction(MPE)and accelerated solvent extraction(ASE)could significantly increase the yield of seabuckthorn oil,but ASE also exacerbated the lipid peroxidation of seabuckthorn pulp oil.MPE increased the migration of phytosterols and carotenoids in seabuckthorn oil.ASE was more conducive to the release of tocopherols and phenolic compounds into oil phase.In conclusion,from the perspective of seabuckthorn oil yield and nutritional quality,microwave pretreatment,as an effective pretreatment method,could be applied to the preparation of seabuckthorn oil when coupled with short accelerated solvent extraction.
作者
曾凡正
邓乾春
禹晓
ZENG Fanzheng;DENG Qianchun;YU Xiao(Center for Food Evaluation,State Administration for Market Regulation,Beijing 100070,China;Oil Crops Research Institute,Chinese Academy of Agricultural Sciences,Wuhan 430062,China;College of Food and Biological Engineering,Zhengzhou University of Light Industry,Zhengzhou 450001,China)
出处
《中国油脂》
CAS
CSCD
北大核心
2020年第5期93-99,共7页
China Oils and Fats
关键词
沙棘油
加工部位
提取工艺
品质特性
脂质伴随物
seabuckthorn oil
processing part
extraction technology
quality property
lipid concomitant
